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http://dx.doi.org/10.5012/bkcs.2012.33.7.2133

A Newly Designed a TiO2-Loaded Spherical ZnS Nano/Micro-Composites for High Hydrogen Production from Methanol/Water Solution Photo-Splitting  

Kim, Ji-Eun (Department of Chemistry, College of Science, Yeungnam University)
Kang, Mi-Sook (Department of Chemistry, College of Science, Yeungnam University)
Publication Information
Bulletin of the Korean Chemical Society / v.33, no.7, 2012 , pp. 2133-2139 More about this Journal
Abstract
A new system using $TiO_2$ (nano-sized, band-gap 3.14 eV)-impregnated spherical ZnS (micro-sized, band-gap 2.73 eV) nano/micro-composites (Ti 0.001, 0.005, 0.01, and 0.05 mol %/ZnS) was developed to enhance the production of hydrogen from methanol/water splitting. The ZnS particles in a spherical morphology with a diameter of about 2-4 mm which can absorb around 455 nm were prepared by hydrothermal method. This material was used as a photocatalyst with loading by nano-sized $TiO_2$ (20-30 nm) for hydrogen production. The evolution of $H_2$ from methanol/water (1:1) photo splitting over the $TiO_2$/ZnS composite in the liquid system was enhanced, compared with that over pure $TiO_2$ and ZnS. In particular, 1.2 mmol of $H_2$ gas was produced after 12 h when 0.005 mol % $TiO_2$/ZnS nano/micro-composite was used. On the basis of cyclic voltammeter (CV) and UV-visible spectrums results, the high photoactivity was attributed to the larger band gap and the lower LUMO in the $TiO_2$/ZnS composite, due to the decreased recombination between the excited electrons and holes.
Keywords
$TiO_2$/ZnS nano/micro-composite; Hydrogen production; Methanol/water photo-splitting; Band gap;
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1 Soni, H.; Chawda, M.; Bodas, D. Mater. Lett. 2009, 63, 767.   DOI
2 Saravana Kumar, S.; Abdu lKhadar, M.; Nair, KGM. J. Luminescence 2011, 131, 786.   DOI
3 Sharman, R.; Bisen, D. P.; Dhoble, S. J.; Brahme, N.; Chandra, B. P. J. Luminescence 2011, 131, 2089.   DOI
4 Borse, P. H.; Vogel, W.; Kulkarni, S. K. J. Colloid Interf. Sci. 2006, 293, 437.   DOI
5 Tang, T.-P. Ceramics Inter. 2007, 33, 1251.   DOI
6 Muruganandhama, M.; Amuthaa, R.; Repo, E.; Sillanpaa, M.; Kusumoto, Y.; Abdulla-Al-Mamun, M. J. Photochem. Photobiol. A: Chem. 2010, 216, 133.   DOI
7 Hong, W. J.; Kang, M. Mater. Lett. 2006, 60, 1296.   DOI
8 Lee, B.-Y.; Park, S.-Y.; Kang, M.; Lee, S.-C.; Choung, S.-J. Appl. Catal. A: Gen. 2003, 253, 371.   DOI
9 Xu, S.; Ng, J.; Zhang, X.; Bai, H.; Sun, D. D. Inter. J. Hydro. Energy 2010, 35, 5254.   DOI
10 Nakamura, S.; Yamada, Y.; Taguchi, T. J. Cryst. Growth 2000, 214/215, 1091.   DOI
11 Liu, X.; Cai, X.; Mao, J.; Jin, C. Appl. Surf. Sci. 2001, 183, 103.   DOI
12 Nazerdeylami, S.; Saievar-Iranizad, E.; Dehghani, Z.; Molaei, M. Physica B 2011, 406, 108.   DOI
13 Luo, L.; Chen, H.; Zhang, L.; Xu, K.; Lv, Y. Analytica Chimica Acta 2009, 635, 183.   DOI
14 Li , Y.; Wang, J.; Peng, S.; Lu, G.; Lu, S. Inter. J. Hydro. Energy 2010, 35, 7116.   DOI
15 Kwak, B. S.; Chae, J.; Kim, J.; Kang, M. Bull. Korean Chem. Soc. 2009, 30, 1047.   DOI
16 Li, Y.; He, F.; Peng, S.; Lu, G.; Li, S. Inter. J. Hydro. Energy 2011, 36, 10565.   DOI
17 Lin, Y.; Lin, R.; Yin, F.; Xiao, X.; Wu, M.; Gu, W.; Li, W. J. Photochem. Photobiol. A: Chem. 1999, 125, 135.   DOI
18 Rusdi, R.; Rahman, A. A.; Mohamed, N. S.; Kamarudin, N.; Kamarulzaman, N. Powder Technol. 2011, 210, 18.   DOI   ScienceOn
19 Kwak, B. S.; Choi, H.-C.; Woo, J. W.; An, J. B.; Ryu, S. G.; Kang, M. Clean Technol. 2011, 17, 78.
20 Liu, H.; Zhang, K.; Jing, D.; Liu, G.; Guo, L. Inter. J. Hydro. Energy 2010, 35, 7080.   DOI
21 Feng, Q. J.; Shen, D. Z.; Zhang, J. Y.; Liang, H. W.; Zhao, D. X.; Lu, Y. M.; Fan, X. W. J. Cryst. Growth 2005, 285, 561.   DOI
22 Onishi, T.; Abe, K.; Miyoshi, Y.; Wakita, K.; Sato, N.; Mochizuki K. J. Phys. Chem. Solids 2005, 66, 1947.   DOI
23 Karami, H.; Kafi, B.; Mortazavi, S. N. Int. J. Electrochem. Sci. 2009, 4, 414.
24 Kim, Y.; Jeong, J. H.; Kang, M. Inorganica Chimica Acta 2011, 365, 400.   DOI
25 Zhang, W.-M.; Li, H.-M.; Sun, Z.-X.; Zhang, Q.; Forsling, W. Microporous Mesoporous Mater. 2012, 147, 222.   DOI
26 Shao, H.-F.; Qian, X.-F.; Zhu, Z.-K. J. Solid State Chem. 2005, 178, 3522.   DOI
27 Aleman, B.; Fernandez, P.; Piqueras, J. J. Cryst. Growth 2010, 312, 3117.   DOI
28 Yang, P.; Lu, M.; Xu, D.; Yuan, D.; Song, C.; Zhou, G. Appl. Phys. A 2002, 74, 525.   DOI
29 Zhou, J.; Goto, H.; Sawaki, N.; Akasaki, I. J. Appl. Phys. 1986, 25, 1663.   DOI
30 Yano, S.; Schroeder, R.; Ullrich, B.; Sakai, H. Thin Solid Films 2003, 423, 273.   DOI
31 Liu, Y.; Hu, J.; Ngo, C.; Prikhodko, S.; Kodambaka, S.; Li, J.; Richard, R. Appl. Catal. B: Environ. 2011, 106, 212.
32 Franco, A.; Neves, M. C.; Ribeiro Carrott, M. M. L.; Mendonc, M. H.; Pereira, M. I.; Monteiro, O. C. J. Hazardous Mater. 2009, 161, 545.   DOI
33 Kho, R.; Torres-Martínez, C. L.; Mehra, R. K. J. Colloid. Interf. Sci. 2000, 227, 561.   DOI
34 Shao, M.; Han, J.; Wei, M.; Evans, D. G.; Duan, X. Inter. J. Hydro. Energy 2011, 36, 13452.   DOI
35 El-Kemar, M.; El-Shamy, H. J. Photochem. Photobiol. A: Chem. 2009, 205, 151.   DOI
36 Li, Y.; He, F.; Peng, S.; Lu, G.; Li, S. Inter. J. Hydro. Energy 2011, 36, 10565.   DOI
37 Torres-Martínez, C. L.; Kho, R.; Mian, O. I.; Mehra, R. K. J.Colloid Interf. Sci. 2001, 240, 525.   DOI
38 Chen, J.; Lin, S.; Yan, G.; Yang, L.; Chen, X. Catal. Commun. 2008, 9, 65.   DOI   ScienceOn
39 Song, H.; Leem, Y.-M.; Kim, B.-G.; Yu, Y.-T. J. Phys. Chem. Solids 2008, 69, 153.   DOI